$\sec\left(x\right)^2+\csc\left(-1.3\right)^2=\frac{1}{\sin\left(x\right)^2\cdot\cos\left(x\right)^2}$

$\int_{-2}^3\left(\frac{1}{-3x^3}\right)dx$

$\int\left(2y\right)\sqrt{\left(1+y^4\right)}dy$

$\left(2q+1200\right)^2$

$3f+3c+2h+f+3c$

$10x-6y+4z-34$

$\frac{4}{\left(x\left(\sqrt{9-x^2}\right)\right)}$